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Re: [libvirt] anyone implementing host device enumeration?



Hi Daniel -
  I have an implementation underway right now, with both HAL- and
Devkit-based "drivers".  We have some folks who need this *next week*,
so I'm trying to get the most functionality finished up today and this
weekend.
  The generic (HAL/Devkit-agnostic) framework is essentially done and
tested (except for a few odds and ends like some missing virsh fns).
The HAL-based driver is ~80% done.  The Devkit-based driver isn't very
capable yet, mostly because of the limited Devkit functionality
available (also, there are some serious naming issues to discuss).
  I haven't yet implemented virNodeDevice{Create,Destroy}, nor am I
registering for HAL/Devkit events.  We don't need this functionality
right away, so I may wait 'til next week to implement them.  The
underlying virNodeDevice infrastructure is ref-counted and accessed via
a conn->lock-protected virHashTable (like connections, domains, etc.),
so concurrent access shouldn't be a problem.
  I'll post a patch (with some TODOs ...) on Sunday or Monday morning.

Dave


On Fri, 2008-09-26 at 14:15 +0100, Daniel P. Berrange wrote:
> On Thu, Aug 21, 2008 at 03:18:57PM -0400, David Lively wrote:
> > Hi -
> > 
> >   I'm about to start working on host device enumeration, along the
> > (HAL-ish) lines of what was discussed back in April:
> >   https://www.redhat.com/archives/libvir-list/2008-April/msg00005.html
> > 
> >   I know the xml details haven't been fully fleshed out, but there seems
> > to be agreement that it will be a fairly direct mapping from (a subset
> > of the) HAL info to the details that we need in the xml.  Doubtless it
> > will take a while to figure out exactly what subset suffices (and, for
> > that matter, if everything needed is available via HAL ...), but I think
> > the work is well-defined for some of the obvious details (discussed in
> > the above thread) on which there's broad agreement.
> > 
> >   Is anyone working on such an implementation?
> 
> Did you ever start any work on this project ?  The oVirt guys really want
> this done asap, so if you've not started on it, or have a partial start
> to work from, I plan to make time to look at it next week
> 
> Regards,
> Daniel



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